<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryRef" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="分类">
        <el-cascader
            :props="categoryProps"
            style="width: 100%"
            v-model="queryCategoryIdList"
            @change="handleCategoryChange"
        />
      </el-form-item>

      <el-form-item label="品牌">
        <el-select
            v-model="queryParams.brandId"
            class="m-2"
            placeholder="选择品牌"
            size="small"
            style="width: 100%"
        >
          <el-option
              v-for="item in brandList"
              :key="item.id"
              :label="item.name"
              :value="item.id"
          />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <el-button icon="Refresh" id="reset-all" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
            type="primary"
            plain
            icon="Plus"
            @click="handleAdd"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="success"
            plain
            icon="Edit"
            :disabled="single"
            @click="handleUpdate"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="danger"
            plain
            icon="Delete"
            :disabled="multiple"
            @click="handleDelete"
        >删除</el-button>
      </el-col>
      <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <!-- 数据展示表格 -->
    <el-table :data="categoryBrandList" v-loading="loading" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="分类名称" prop="categoryName" />
      <el-table-column label="品牌名称" prop="brandName" />
      <el-table-column prop="logo" label="品牌图标" #default="scope">
        <img :src="scope.row.logo" width="50" />
      </el-table-column>
      <el-table-column prop="createTime" label="创建时间" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template #default="scope">
          <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)">修改</el-button>
          <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页条组件 -->
    <pagination
        v-show="total > 0"
        :total="total"
        v-model:page="queryParams.pageNum"
        v-model:limit="queryParams.pageSize"
        @pagination="getList"
    />
    <!-- 添加或修改分类品牌对话框 -->
    <el-dialog :title="title" v-model="open" :rules="rules" width="500px" append-to-body>
      <el-form ref="categoryBrandRef" :model="form" label-width="80px">
        <el-form-item label="分类" prop="categoryIdList">
          <el-cascader
              :props="categoryProps"
              v-model="form.categoryIdList"
          />
        </el-form-item>
        <el-form-item label="品牌" prop="brandId">
          <el-select
              v-model="form.brandId"
              class="m-2"
              placeholder="选择品牌"
              size="small"
          >
            <el-option
                v-for="item in brandList"
                :key="item.id"
                :label="item.name"
                :value="item.id"
            />
          </el-select>
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="CategoryBrand">
// ================数据模型定义  start ===============================================
import { listCategoryBrand,getCategoryBrand,addCategoryBrand,updateCategoryBrand,deleteCategoryBrand } from "@/api/product/categoryBrand.js"
import { getBrandAll } from "@/api/product/brand.js"
import { getTreeSelect } from "@/api/product/category.js"

const {proxy} = getCurrentInstance()

// 定义搜索表单数据模型
const brandList = ref([])
const showSearch = ref(true)
const loading = ref(false)

const props = {
  lazy: true,
  value: 'id',
  label: 'name',
  leaf: 'leaf',
  async lazyLoad(node, resolve) {   // 加载数据的方法
    if(typeof node.value == 'undefined') node.value = 0
    const { code,data,message } = await getTreeSelect(node.value)
    data.forEach(item=>{
      item.leaf = !item.hasChildren
    })
    resolve(data)  // 返回数据
  }
};
const categoryProps = ref(props)

const data = reactive({
  queryParams:{
    pageNum:null,
    pageSize:null,
    brandId:null,
    categoryId:null
  },
  form:{
    id:null,
    categoryIdList:[],
    categoryId:null,
    brandId:null
  },
  rules: {
    categoryIdList: [
      { required: true, message: "分类不能为空", trigger: "blur" }
    ],
    brandId: [
      { required: true, message: "品牌不能为空", trigger: "blur" }
    ]
  }
})
const { queryParams,form,rules } = toRefs(data)
//新增与修改弹出层控制模型
const open = ref(false)
//新增与修改弹出层标题模型
const title = ref("");
//单选控制模型
const multiple = ref(true)
//多选控制模型
const single = ref(true)
//定义批量操作id列表模型
const ids = ref([])
// 定义表格数据模型
const categoryBrandList = ref([])

// 分页条数据模型
const total = ref(0)

const queryCategoryIdList = ref([])

// =========   数据模型定义 end======================================================================

//列表
function getList(){
  loading.value = true
  listCategoryBrand(queryParams.value).then(result=>{
    categoryBrandList.value = result.rows
    total.value = result.total
    loading.value = false
  })
}
getList()

//品牌
function getBrandAllList(){
  getBrandAll().then(result=>{
    brandList.value = result.data
  })
}
getBrandAllList()
//处理分类change事件
function handleCategoryChange(){
  if (queryCategoryIdList.value.length == 3){
    queryParams.value.categoryId = queryCategoryIdList.value[2]
  }
}
//搜索
function handleQuery(){
  getList()
}
//重置
function resetQuery(){
  queryParams.value.categoryId=null
  queryCategoryIdList.value = []
  queryParams.value.brandId = null
  getList()
}
//新增
function handleAdd(){
  open.value=true
  title.value="添加"
  reset()
}
//修改
function handleUpdate(row){
  const _id = row.id || ids.value
  getCategoryBrand(_id).then(result=>{
    form.value = result.data
    open.value=true
    title.value="修改"
  })
}
// 表单重置
function reset(){
  form.value.id=null
  form.value.categoryId=null
  form.value.brandId=null
  form.value.categoryIdList=[]
}
//表单提交
function submitForm(){
  proxy.$refs["categoryBrandRef"].validate(valid=>{
    if (valid){
      form.value.categoryId=form.value.categoryIdList[2]
      if(form.value.id){
        updateCategoryBrand(form.value).then(result=>{
          open.value=false
          proxy.$modal.msgSuccess(result.msg)
          getList()
        })
      }else {
        addCategoryBrand(form.value).then(result=>{
          open.value=false
          proxy.$modal.msgSuccess(result.msg)
          getList()
        })
      }

    }
  })
}
//表单取消
function cancel(){
  open.value=false
  reset()
}
//多选框选中的数据
function handleSelectionChange(selection){
  ids.value = selection.map(item=>item.id)
  multiple.value = !selection.length
  single.value = selection.length != 1
}
//删除
function handleDelete(row){
  const _ids = row.id || ids.value
  proxy.$modal.confirm("您是否确定要删除这条数据").then(()=>{
    return deleteCategoryBrand(_ids)
  }).then((result)=>{
    proxy.$modal.msgSuccess(result.msg)
    getList()
  }).catch((e)=>{
    if (e == 'cancel'){
      proxy.$modal.msgSuccess("取消删除")
    }else {
      proxy.$modal.msgError("删除失败"+e)
    }
  })
}

</script>